The only really certain way to tell is to have a club fitter put you on the launch monitor with several different shafts.
You can guess pretty well by comparing how far you hit a driver or 5 iron to correlations between distance, swing speed, and appropriate shaft stiffness. You can try some of the attached links for more info.
Shaft is the handle of the golf club.
If the tip diameters are the same then yes. You will need to take it to your local golf shop and they can tell you. If so they will be able to put the new head on the existing shaft very easily.
There is usually a small sticker, usually metallic, it is located near the top of the shaft just below the grip. It should tell you which one it is.
it is a taylor made golf shaft that has a smaller dia at the bottom of the grip .
No, a golf shaft will fit both right and left handed clubs.
Do you mean Fujikura? If so, then yes, Fujikura make some of the best golf shafts in Golf.
It is imposible for me to tell you how stiff a shaft you should use because I don't know your swing speed. Golfers who swing the club at a faster speed in the downswing (faster swing peed) will require a stiffer, and possibly heavier shaft, whereas a golfer with a slower swing speed may need a more flexible and possibly lighter shaft. Depending on how serious you are about golf, you may want to get a club fitting. If you do this a golf professional will help you find the
A high lofted one around 10.5 plus, with a regular shaft. Or an offset one, the offset will correct your slice.
Nothing it is a brand of shaft, the specs in all shafts differ
Reshaft it with the proper length shaft, you local golf shop or professional should be able to do it for you easily and cheaply.
Hosel is the the socket (or neck) in the head of a golf club into which the shaft is inserted.
Selecting the right shaft can make or break your game. If you are not using the shaft that is fitted for you, you could be hurting your game. For a detailed answer on how shafts work, you can go to the link below. I suggest you go to a golf professional and have them fit you for a shaft.